Grinding-mill.



G. s. EMBRIcKi GRINDING MILL. APPLICATION FILED O0T.18,71907. V 93 1,045 Patented Aug: 17, 1909.

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v H W WITNESSES INVENTUI? M a CL: 6&0'196 JEmgsrw/fi 61' Flo v w l 4:iiranmc I G. s. EMERIGK.

GRINDING MILL. APPLICATION FILED 0OT.18,1907.

Patented Aug. 17, 1909.

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WI TNESSES bring the screw 30 into the hopper 15, the

( nantity of material fed to the drum t may be increased; and byadjusting the shaft 28 longitudinally to move the screw 30 in theand theouter end of the shaft 28 extend through and are rotatably engaged witha block 33, collars 34 being provided upon the shaft 28 to preventlongitudinal movement thereof with relation to the block 33, and acollar 35 being provided upon the screw 31,

which collar, with the hub of the wheel 32,

prevents longitudinal movement of the screw 31 with relation to theblock 33. Thus it will be seen that by turning the screw 31.

the shaft 28 and screw 30 may be .longitudi-' nally adjusted. Further,it will be seen that the feed screw 30 may be adjusted during thegrinding operation, and Without disturbing the grinding membersMyinvention is designed for use in connection with any form of grindingmill wherein two grinding members are movable with relation to eachother, the essential of the invention being the adjustment of the feedscrew independently of the grinding niembers. i

1. The combination of a frame, two grind ing members movable withrelation to each other, a feed casing having an opening therein throughwhich material may be introduced to said members, a feed screw withinsaid casing, rotating means for one of said members and said screw, andmeans for adjusting said screw with respect to said opening andindependently of its rotating means and said members.

2. The combination of a frame, a grinding member, a second grindingmember movable with relation to the first named grinding member, meansfor rotating said second grinding member, a feed-casing having anopening therein through which material may be introduced to' saidmembers, a feedscrewwithin said casing, said screw being engaged Withsaid second grinding member to be rotated thereby and said screw beinglongitudinally adjustable with relation to said second grii'iding memberand said opening, and means for adjusting said screw.

3. The combination of a frame, two grinding members movable withrelation to each other, afeed casing having an opening therein throughwhich material may be introduced to said members, a feed screw withinsaid casing, rotating means for one of said members and said screw, saidscrew being adjustable with respect to said opening and independently ofits rotating means and an adjusting screw engaged with said frame andconnected to said feed screw.

4. The combination of a frame, a grinding member, a second grindingmember movable with relation to the first named grinding member, meansfor rotating said second grinding member, a feed-casing having anopening therein through which material may be introduced to saidmembers, a feedscrew within said casing, said screw being engaged withsaid second grinding member to be rotated thereby and said screw beinglongitudinally,adjustable with relation to said second grindigg memberand said opening, and an adjusting screw engaged with said strame andconnected to said feed-screw.

In testimony whereof I afiix my signature in presence of two witnesses.

. GEORGE STOCKHAM EMERICK. Witnesses A. V, Gnonrn,

E. M. WARE.

